What is the difference between a man and a animal?
First, man is the higher class form of other animals.
The major difference isn't the looks, scientifucally its man's higher knowledge of that has made man superior.
Biblically speaking, man was the only creation God created like himself when he said "let's make man in our image and likeness".
The mind and the superior brain is what separates humans from animals. But, it is sad to see that humans are acting more like animals these days.